FNW®

681 10 in. Epoxy Coated Cast Iron Wafer Check Valve

Part #FNW68110  |  Manufacturer Part #FNW68110

Valve Size:

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Product Details

  • Silent check valves were developed to eliminate water hammer due to water flow reversal in clear water pump applications
  • Vertical and horizontal mounting
  • Valve opens when upstream pressure exceeds downstream pressure by 1/4 to 1/2 psi
  • An internal spring closes valve just prior to an equalizing pressure on both sides providing a quiet and shock less valve closing
  • Maximum recommended flow velocity for all valves is 12' per second
  • Wafer style valve body is cast iron, seat ring is aluminum bronze, seat/seat seal are EPDM, aluminum bronze bushing and disc, with SS spring and hardware
  • The wafer style is rated 200 psi for all models sizes

Documents

Specifications

ADA Compliant: No

ANSI Specifications: ANSI B16.1

API Specifications: API 598

Coating: Epoxy

Collection: 681

End Connection 1: Wafer

End Connection 2: Wafer

End Connections: Wafer

Fitting Size 1: 10 in

Fitting Sizes: 10 in

Installation Type: [Horizontal Mount, Vertical Mount]

Length: 8-1/4 in

MSS Specifications: MSS SP-6

Material: [Cast Iron, Stainless Steel, Bronze]

Maximum Pressure: 200 psi

Maximum Temperature: 176

Pressure Class: 125#

Valve Body Style: Wafer

Valve Disc Material: [Aluminum, Bronze]

Valve Seat Material: EPDM

Valve Size: 10 in

Valve Type: Check Valve